break render apart into multiple files

This commit is contained in:
2020-03-10 14:11:13 -04:00
parent b504e5b7c3
commit d29fc033df
10 changed files with 452 additions and 487 deletions

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@@ -0,0 +1,67 @@
#pragma once
#include <memory>
#include <glad/glad.h>
namespace cgl {
template<class T>
class buffer {
GLuint id{};
public:
buffer() {
glCreateBuffers(1, &id);
}
buffer(const T &data, GLenum usage = GL_STATIC_DRAW)
: buffer() {
put(data, usage);
}
buffer(const std::vector<T> &data, GLenum usage = GL_STATIC_DRAW)
: buffer() {
put(data, usage);
}
buffer(buffer &) = delete;
buffer(buffer &&o) noexcept {
id = std::exchange(o.id, 0);
};
~buffer() {
glDeleteBuffers(1, &id);
id = 0;
}
operator GLuint() const {
return id;
}
[[nodiscard]] size_t size() const {
GLint res;
glGetNamedBufferParameteriv(id, GL_BUFFER_SIZE, &res);
return (size_t) res;
}
[[nodiscard]] size_t count() const {
return size() / sizeof(T);
}
void put(const T &data, GLenum usage = GL_STATIC_DRAW) {
glNamedBufferData(id, sizeof(T), &data, usage);
}
void put(const std::vector<T> &data, GLenum usage = GL_STATIC_DRAW) {
glNamedBufferData(id, sizeof(T) * data.size(), &data[0], usage);
}
void bound(GLenum target, const std::function<void()> &action) const {
glBindBuffer(target, id);
action();
glBindBuffer(target, 0);
}
};
}

28
vis/include/cgl/error.hpp Normal file
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@@ -0,0 +1,28 @@
#pragma once
#include <stdexcept>
#include <glad/glad.h>
namespace cgl {
class gl_error : public std::domain_error {
public:
explicit gl_error(const std::string &arg) : domain_error(arg) {}
explicit gl_error(const char *string) : domain_error(string) {}
};
class shader_error : public gl_error {
public:
explicit shader_error(const std::string &arg) : gl_error(arg) {}
explicit shader_error(const char *string) : gl_error(string) {}
};
class program_error : public gl_error {
public:
explicit program_error(const std::string &arg) : gl_error(arg) {}
explicit program_error(const char *string) : gl_error(string) {}
};
}

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@@ -0,0 +1,88 @@
#pragma once
#include <functional>
#include <string>
#include <utility>
#include <glad/glad.h>
#include <cgl/error.hpp>
#include <cgl/shaderprogram.hpp>
#include <util.hpp>
namespace cgl{
class pipeline {
protected:
GLuint id{};
public:
pipeline() {
glCreateProgramPipelines(1, &id);
}
pipeline(pipeline &) = delete;
pipeline(pipeline &&o) noexcept {
id = std::exchange(o.id, 0);
}
~pipeline() {
glDeleteProgramPipelines(1, &id);
id = 0;
}
operator GLuint() const {
return id;
}
[[nodiscard]] int get(GLenum pname) const {
GLint res;
glGetProgramPipelineiv(id, pname, &res);
return (int) res;
}
[[nodiscard]] std::string get_info_log() const {
auto len = (size_t) get(GL_INFO_LOG_LENGTH);
char buffer[len];
glGetProgramPipelineInfoLog(id, len, nullptr, buffer);
return std::string(buffer);
}
pipeline &stage(const shaderprogram<GL_VERTEX_SHADER> &pgm) {
glUseProgramStages(id, GL_VERTEX_SHADER_BIT, pgm);
return *this;
}
pipeline &stage(const shaderprogram<GL_TESS_CONTROL_SHADER> &pgm) {
glUseProgramStages(id, GL_TESS_CONTROL_SHADER_BIT, pgm);
return *this;
}
pipeline &stage(const shaderprogram<GL_TESS_EVALUATION_SHADER> &pgm) {
glUseProgramStages(id, GL_TESS_EVALUATION_SHADER_BIT, pgm);
return *this;
}
pipeline &stage(const shaderprogram<GL_GEOMETRY_SHADER> &pgm) {
glUseProgramStages(id, GL_GEOMETRY_SHADER_BIT, pgm);
return *this;
}
pipeline &stage(const shaderprogram<GL_FRAGMENT_SHADER> &pgm) {
glUseProgramStages(id, GL_FRAGMENT_SHADER_BIT, pgm);
return *this;
}
pipeline &stage(const shaderprogram<GL_COMPUTE_SHADER> &pgm) {
glUseProgramStages(id, GL_COMPUTE_SHADER_BIT, pgm);
return *this;
}
void bound(const std::function<void()> &action) const {
glBindProgramPipeline(id);
action();
glBindProgramPipeline(0);
}
};
}

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@@ -0,0 +1,65 @@
#pragma once
#include <string>
#include <utility>
#include <glad/glad.h>
#include <cgl/error.hpp>
#include <cgl/shader.hpp>
#include <util.hpp>
namespace cgl {
class program {
protected:
GLuint id{};
public:
program() {
id = glCreateProgram();
}
program(program &) = delete;
program(program &&o) noexcept {
id = std::exchange(o.id, 0);
};
~program() {
glDeleteProgram(id);
}
operator GLuint() const {
return id;
}
[[nodiscard]] int get(GLenum pname) const {
GLint res;
glGetProgramiv(id, pname, &res);
return (int) res;
}
[[nodiscard]] std::string get_info_log() const {
auto len = (size_t) get(GL_INFO_LOG_LENGTH);
char buffer[len];
glGetProgramInfoLog(id, len, nullptr, buffer);
return std::string(buffer);
}
template<GLenum mode>
void attach(const shader<mode> &sh) {
glAttachShader(id, sh);
}
template<GLenum mode>
void detach(const shader<mode> &sh) {
glDetachShader(id, sh);
}
bool link() {
glLinkProgram(id);
return (bool) get(GL_LINK_STATUS);
}
};
}

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@@ -1,355 +0,0 @@
#pragma once
#include <memory>
#include <glad/glad.h>
namespace cgl {
template<class T>
class buffer {
GLuint id{};
public:
buffer() {
glCreateBuffers(1, &id);
}
buffer(const T &data, GLenum usage = GL_STATIC_DRAW)
: buffer() {
put(data, usage);
}
buffer(const std::vector<T> &data, GLenum usage = GL_STATIC_DRAW)
: buffer() {
put(data, usage);
}
buffer(buffer &) = delete;
buffer(buffer &&o) noexcept {
id = std::exchange(o.id, 0);
};
~buffer() {
glDeleteBuffers(1, &id);
id = 0;
}
operator GLuint() const {
return id;
}
[[nodiscard]] size_t size() const {
GLint res;
glGetNamedBufferParameteriv(id, GL_BUFFER_SIZE, &res);
return (size_t) res;
}
[[nodiscard]] size_t count() const {
return size() / sizeof(T);
}
void put(const T &data, GLenum usage = GL_STATIC_DRAW) {
glNamedBufferData(id, sizeof(T), &data, usage);
}
void put(const std::vector<T> &data, GLenum usage = GL_STATIC_DRAW) {
glNamedBufferData(id, sizeof(T) * data.size(), &data[0], usage);
}
void bound(GLenum target, const std::function<void()> &action) const {
glBindBuffer(target, id);
action();
glBindBuffer(target, 0);
}
};
template<GLenum mode>
class shader {
protected:
GLuint id{};
public:
shader() {
id = glCreateShader(mode);
}
shader(const std::string &src) : shader() {
set_source(src);
if (!compile())
throw shader_error<mode>(get_info_log());
}
static shader<mode> file(const std::string &name) {
return shader<mode>(utilReadFile(name));
}
shader(shader &) = delete;
shader(shader &&o) noexcept {
id = std::exchange(o.id, 0);
};
~shader() {
glDeleteShader(id);
}
operator GLuint() const {
return id;
}
[[nodiscard]] int get(GLenum pname) const {
GLint res;
glGetShaderiv(id, pname, &res);
return (int) res;
}
[[nodiscard]] std::string get_info_log() const {
auto len = (size_t) get(GL_INFO_LOG_LENGTH);
char buffer[len];
glGetShaderInfoLog(id, len, nullptr, buffer);
return std::string(buffer);
}
void set_source(const std::string &src) {
const char *c_src = src.c_str();
glShaderSource(id, 1, &c_src, nullptr);
}
bool compile() {
glCompileShader(id);
return (bool) get(GL_COMPILE_STATUS);
}
};
class program {
protected:
GLuint id{};
public:
program() {
id = glCreateProgram();
}
program(program &) = delete;
program(program &&o) noexcept {
id = std::exchange(o.id, 0);
};
~program() {
glDeleteProgram(id);
}
operator GLuint() const {
return id;
}
[[nodiscard]] int get(GLenum pname) const {
GLint res;
glGetProgramiv(id, pname, &res);
return (int) res;
}
[[nodiscard]] std::string get_info_log() const {
auto len = (size_t) get(GL_INFO_LOG_LENGTH);
char buffer[len];
glGetProgramInfoLog(id, len, nullptr, buffer);
return std::string(buffer);
}
template<GLenum mode>
void attach(const shader<mode> &sh) {
glAttachShader(id, sh);
}
template<GLenum mode>
void detach(const shader<mode> &sh) {
glDetachShader(id, sh);
}
bool link() {
glLinkProgram(id);
return (bool) get(GL_LINK_STATUS);
}
};
template<GLenum mode>
class shaderprogram : public program {
public:
shaderprogram() : program() {
glProgramParameteri(id, GL_PROGRAM_SEPARABLE, GL_TRUE);
}
shaderprogram(const std::string &src) : shaderprogram() {
shader<mode> sh(src);
attach(sh);
if (!link())
throw shader_error<mode>(get_info_log());
detach(sh);
}
static shaderprogram<mode> file(const std::string &name) {
return shaderprogram<mode>(utilReadFile(name));
}
};
class pipeline {
protected:
GLuint id{};
public:
pipeline() {
glCreateProgramPipelines(1, &id);
}
pipeline(pipeline &) = delete;
pipeline(pipeline &&o) noexcept {
id = std::exchange(o.id, 0);
}
~pipeline() {
glDeleteProgramPipelines(1, &id);
id = 0;
}
operator GLuint() const {
return id;
}
[[nodiscard]] int get(GLenum pname) const {
GLint res;
glGetProgramPipelineiv(id, pname, &res);
return (int) res;
}
[[nodiscard]] std::string get_info_log() const {
auto len = (size_t) get(GL_INFO_LOG_LENGTH);
char buffer[len];
glGetProgramPipelineInfoLog(id, len, nullptr, buffer);
return std::string(buffer);
}
pipeline &stage(const shaderprogram<GL_VERTEX_SHADER> &pgm) {
glUseProgramStages(id, GL_VERTEX_SHADER_BIT, pgm);
return *this;
}
pipeline &stage(const shaderprogram<GL_TESS_CONTROL_SHADER> &pgm) {
glUseProgramStages(id, GL_TESS_CONTROL_SHADER_BIT, pgm);
return *this;
}
pipeline &stage(const shaderprogram<GL_TESS_EVALUATION_SHADER> &pgm) {
glUseProgramStages(id, GL_TESS_EVALUATION_SHADER_BIT, pgm);
return *this;
}
pipeline &stage(const shaderprogram<GL_GEOMETRY_SHADER> &pgm) {
glUseProgramStages(id, GL_GEOMETRY_SHADER_BIT, pgm);
return *this;
}
pipeline &stage(const shaderprogram<GL_FRAGMENT_SHADER> &pgm) {
glUseProgramStages(id, GL_FRAGMENT_SHADER_BIT, pgm);
return *this;
}
pipeline &stage(const shaderprogram<GL_COMPUTE_SHADER> &pgm) {
glUseProgramStages(id, GL_COMPUTE_SHADER_BIT, pgm);
return *this;
}
void bound(const std::function<void()> &action) const {
glBindProgramPipeline(id);
action();
glBindProgramPipeline(0);
}
};
namespace sh {
using vert = shader<GL_VERTEX_SHADER>;
using tcs = shader<GL_TESS_CONTROL_SHADER>;
using tes = shader<GL_TESS_EVALUATION_SHADER>;
using geom = shader<GL_GEOMETRY_SHADER>;
using frag = shader<GL_FRAGMENT_SHADER>;
using comp = shader<GL_COMPUTE_SHADER>;
}
namespace pgm {
using vert = shaderprogram<GL_VERTEX_SHADER>;
using tcs = shaderprogram<GL_TESS_CONTROL_SHADER>;
using tes = shaderprogram<GL_TESS_EVALUATION_SHADER>;
using geom = shaderprogram<GL_GEOMETRY_SHADER>;
using frag = shaderprogram<GL_FRAGMENT_SHADER>;
using comp = shaderprogram<GL_COMPUTE_SHADER>;
}
class vertexarray {
GLuint id{};
public:
vertexarray() {
glCreateVertexArrays(1, &id);
}
vertexarray(vertexarray &) = delete;
vertexarray(vertexarray &&o) noexcept {
id = std::exchange(o.id, 0);
}
~vertexarray() {
glDeleteVertexArrays(1, &id);
id = 0;
}
operator GLuint() const {
return id;
}
void bound(const std::function<void()> &action) const {
glBindVertexArray(id);
action();
glBindVertexArray(0);
}
template<class T>
void pointer(
GLuint index,
const buffer<T> &buf,
unsigned size,
GLenum type,
bool normalized = false,
unsigned stride = 0
) const {
bound([&]() {
glEnableVertexAttribArray(index);
buf.bound(GL_ARRAY_BUFFER, [&]() {
glVertexAttribPointer(index, size, type, normalized, stride, nullptr);
});
});
}
template<class T>
void ipointer(
GLuint index,
const buffer<T> &buf,
unsigned size,
GLenum type,
unsigned stride = 0
) const {
bound([&]() {
glEnableVertexAttribArray(index);
buf.bound(GL_ARRAY_BUFFER, [&]() {
glVertexAttribIPointer(index, size, type, stride, nullptr);
});
});
}
};
}

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@@ -0,0 +1,80 @@
#pragma once
#include <string>
#include <utility>
#include <glad/glad.h>
#include <cgl/error.hpp>
#include <util.hpp>
namespace cgl {
template<GLenum mode>
class shader {
protected:
GLuint id{};
public:
shader() {
id = glCreateShader(mode);
}
shader(const std::string &src) : shader() {
set_source(src);
if (!compile())
throw shader_error(get_info_log());
}
static shader<mode> file(const std::string &name) {
return shader<mode>(utilReadFile(name));
}
shader(shader &) = delete;
shader(shader &&o) noexcept {
id = std::exchange(o.id, 0);
};
~shader() {
glDeleteShader(id);
}
operator GLuint() const {
return id;
}
[[nodiscard]] int get(GLenum pname) const {
GLint res;
glGetShaderiv(id, pname, &res);
return (int) res;
}
[[nodiscard]] std::string get_info_log() const {
auto len = (size_t) get(GL_INFO_LOG_LENGTH);
char buffer[len];
glGetShaderInfoLog(id, len, nullptr, buffer);
return std::string(buffer);
}
void set_source(const std::string &src) {
const char *c_src = src.c_str();
glShaderSource(id, 1, &c_src, nullptr);
}
bool compile() {
glCompileShader(id);
return (bool) get(GL_COMPILE_STATUS);
}
};
namespace sh {
using vert = shader<GL_VERTEX_SHADER>;
using tcs = shader<GL_TESS_CONTROL_SHADER>;
using tes = shader<GL_TESS_EVALUATION_SHADER>;
using geom = shader<GL_GEOMETRY_SHADER>;
using frag = shader<GL_FRAGMENT_SHADER>;
using comp = shader<GL_COMPUTE_SHADER>;
}
}

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@@ -0,0 +1,46 @@
#pragma once
#include <string>
#include <utility>
#include <glad/glad.h>
#include <cgl/error.hpp>
#include <cgl/shader.hpp>
#include <cgl/program.hpp>
#include <util.hpp>
namespace cgl{
template<GLenum mode>
class shaderprogram : public program {
public:
shaderprogram() : program() {
glProgramParameteri(id, GL_PROGRAM_SEPARABLE, GL_TRUE);
}
shaderprogram(const std::string &src) : shaderprogram() {
shader<mode> sh(src);
attach(sh);
if (!link())
throw shader_error(get_info_log());
detach(sh);
}
static shaderprogram<mode> file(const std::string &name) {
return shaderprogram<mode>(utilReadFile(name));
}
};
namespace pgm {
using vert = shaderprogram<GL_VERTEX_SHADER>;
using tcs = shaderprogram<GL_TESS_CONTROL_SHADER>;
using tes = shaderprogram<GL_TESS_EVALUATION_SHADER>;
using geom = shaderprogram<GL_GEOMETRY_SHADER>;
using frag = shaderprogram<GL_FRAGMENT_SHADER>;
using comp = shaderprogram<GL_COMPUTE_SHADER>;
}
}

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@@ -0,0 +1,75 @@
#pragma once
#include <functional>
#include <string>
#include <utility>
#include <glad/glad.h>
#include <cgl/error.hpp>
#include <cgl/buffer.hpp>
namespace cgl {
class vertexarray {
GLuint id{};
public:
vertexarray() {
glCreateVertexArrays(1, &id);
}
vertexarray(vertexarray &) = delete;
vertexarray(vertexarray &&o) noexcept {
id = std::exchange(o.id, 0);
}
~vertexarray() {
glDeleteVertexArrays(1, &id);
id = 0;
}
operator GLuint() const {
return id;
}
void bound(const std::function<void()> &action) const {
glBindVertexArray(id);
action();
glBindVertexArray(0);
}
template<class T>
void pointer(
GLuint index,
const buffer<T> &buf,
unsigned size,
GLenum type,
bool normalized = false,
unsigned stride = 0
) const {
bound([&]() {
glEnableVertexAttribArray(index);
buf.bound(GL_ARRAY_BUFFER, [&]() {
glVertexAttribPointer(index, size, type, normalized, stride, nullptr);
});
});
}
template<class T>
void ipointer(
GLuint index,
const buffer<T> &buf,
unsigned size,
GLenum type,
unsigned stride = 0
) const {
bound([&]() {
glEnableVertexAttribArray(index);
buf.bound(GL_ARRAY_BUFFER, [&]() {
glVertexAttribIPointer(index, size, type, stride, nullptr);
});
});
}
};
}

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@@ -8,70 +8,6 @@
#include <glad/glad.h> #include <glad/glad.h>
class gl_error : public std::domain_error {
public:
explicit gl_error(const std::string &arg) : domain_error(arg) {}
explicit gl_error(const char *string) : domain_error(string) {}
};
template<GLenum mode>
class shader_error : public gl_error {
public:
explicit shader_error(const std::string &arg) : gl_error(arg) {}
explicit shader_error(const char *string) : gl_error(string) {}
};
class program_error : public gl_error {
public:
explicit program_error(const std::string &arg) : gl_error(arg) {}
explicit program_error(const char *string) : gl_error(string) {}
};
template<class T, GLenum prop>
T utilGetShader(GLuint shader) {
GLint res;
glGetShaderiv(shader, prop, &res);
return static_cast<T>(res);
}
#define getShaderInfoLogLength utilGetShader<size_t, GL_INFO_LOG_LENGTH>
#define getShaderCompileStatus utilGetShader<size_t, GL_COMPILE_STATUS>
template<class T, GLenum prop>
T utilGetProgram(GLuint program) {
GLint res;
glGetProgramiv(program, prop, &res);
return static_cast<T>(res);
}
#define getProgramInfoLogLength utilGetProgram<size_t, GL_INFO_LOG_LENGTH>
#define getProgramLinkStatus utilGetProgram<size_t, GL_LINK_STATUS>
void utilShaderSource(GLuint shader, const std::vector<std::string> &sources) {
char const *ptrs[sources.size()];
for (size_t i = 0; i < sources.size(); ++i) {
ptrs[i] = sources[i].c_str();
}
glShaderSource(shader, sources.size(), ptrs, nullptr);
}
std::string getShaderInfoLog(GLuint shader) {
int len = getShaderInfoLogLength(shader);
char buffer[len];
glGetShaderInfoLog(shader, len, nullptr, buffer);
return std::string(buffer);
}
std::string getProgramInfoLog(GLuint program) {
int len = getProgramInfoLogLength(program);
char buffer[len];
glGetProgramInfoLog(program, len, nullptr, buffer);
return std::string(buffer);
}
std::string utilInfo() { std::string utilInfo() {
std::stringstream ss; std::stringstream ss;
ss ss
@@ -93,70 +29,3 @@ std::string utilReadFile(const std::string &filename) {
} }
throw std::system_error(errno, std::generic_category()); throw std::system_error(errno, std::generic_category());
} }
GLuint utilCompileFiles(const GLenum type, const std::vector<std::string> &files) {
std::vector<std::string> sources;
sources.reserve(files.size());
for (const auto &file : files) {
sources.push_back(utilReadFile(file));
}
GLuint shader = glCreateShader(type);
utilShaderSource(shader, sources);
glCompileShader(shader);
if (getShaderCompileStatus(shader)) return shader;
throw shader_error<GL_VERTEX_SHADER>(getShaderInfoLog(shader));
}
GLuint utilLinkProgram(const std::vector<GLuint> &shaders) {
GLuint program = glCreateProgram();
for (const auto &shader : shaders) {
glAttachShader(program, shader);
}
glLinkProgram(program);
if (getProgramLinkStatus(program)) return program;
throw program_error(getProgramInfoLog(program));
}
GLuint utilCreateShaderProgram(GLenum type, const std::vector<std::string> &src) {
std::vector<const char *> c_str(src.size());
std::transform(src.begin(), src.end(), c_str.begin(), [](auto &str) {
return str.c_str();
});
GLuint program = glCreateShaderProgramv(type, src.size(), &c_str[0]);
if (getProgramLinkStatus(program)) return program;
throw program_error(getProgramInfoLog(program));
}
GLuint utilCreateShaderProgramFile(GLenum type, const std::vector<std::string> &files) {
std::vector<std::string> sources(files.size());
std::transform(files.begin(), files.end(), sources.begin(), utilReadFile);
return utilCreateShaderProgram(type, sources);
}
std::vector<GLuint> utilCreateVertexArrays(int n) {
std::vector<GLuint> res(n);
glCreateVertexArrays(n, &res[0]);
return res;
}
GLuint utilCreateVertexArray() {
return utilCreateVertexArrays(1)[0];
}
std::vector<GLuint> utilCreateBuffers(int n) {
std::vector<GLuint> res(n);
glCreateBuffers(n, &res[0]);
return res;
}
GLuint utilCreateBuffer() {
return utilCreateBuffers(1)[0];
}

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@@ -11,7 +11,9 @@
#include "mirror.hpp" #include "mirror.hpp"
#include "geometry.hpp" #include "geometry.hpp"
#include <cgl/render.hpp> #include <cgl/vertexarray.hpp>
#include <cgl/shaderprogram.hpp>
#include <cgl/pipeline.hpp>
#ifdef _WIN32 #ifdef _WIN32
extern "C" { extern "C" {